Hi Joshposh and welcome.
Nice to hear you are interested in keeping ants, just want to say this first, to keep ants you need much patient, read much about each species you would like to keep (much species need different farms and food).
This said:
A ant colony has a queen that lay eggs, when they hatch you've got workers, they search for food for the queens and other workers, keep the nest clean and defend it. Some species have workers to do the heavy work. (i hope you understand the basics a bit now.

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